Oil-filter.



F. B. ANDERSON.

OIL FILTER.

APPLIOATION FILED MAY a. 1908.

91 5 650. Patented Mar. 16, 1909.

UNITED STATEd PATENT FFICE.

OIL-FILTER.

To all whom it may concern: Be it known that I, FRANK B. ANonnsoN, a -citizen of the United States, residing at Cleveland, in the county of (Juyahoga and 5 State of Ohio, have invented cextain new and useful Improvements in Oil-Filters, of which the following is a specification.

My dpresent invention pertains to an improve oil-filter, the construction and advantages of which will be hereinafter set forth, reference being had to the annexed drawings, wherein:

, Figure 1 is a sectional elevation of the filter; Fig. 2 a horizontal sectional View,

taken on the line a-a of Fig. 1, the outer casing being omitted; and Fig. 3 a sectional perspective view of one of the filter-plates and a portion of the hub which extends up wardly from the base of the filter.

The object of the present. invention is to rovide a simple filter adapted to remove,

impurities from lubricating oils.

he construction is such that the filter ma be cheaply manufactured and installed in actories and the like where quantities of lubricating oil are employed, the used oil being passed ,through'the filter in order to remove the impurities therefrom so that it ma be used over and over again.

ith a filter constructed as hereinafter set forth an engineer may readily filter the oil which is used around the plant and renew the filtering mediums or filter-papers from time to time as required.

In the drawings, 1 denotes the lower portion of the shell or casing of the filter, referably provided. with a chamber 2 wiich forms a jacket into which a heating medium may be introduced if so desired.

The upper portion of the shell or casing is designated by A tight joint is effected between the upper and lower portions of the casing by a rib Sformed upon the upper ortion, which rib coacts with a packing t5 coated in the upper facc'of the lower sec-- tion 1. The parts are held together by nuts 7, which are screwed down upon threaded stems 8. A vent-cock 9 is located in the upper portion of the up )er member b.

heating coil 10 will be located in the lower portion of the member 1, preferably between the inner wall thereof and a circular 1 rim or collar 11, which extends, upwardly rein the base. Steam or other heating medium will be introduced into the coil and the oil, which enters the shell or casing Patented March 16, 1909.

Serial No. 431,170.

through a pipe. 12 and no opening 13, will be heated by the coil; or, in case a coil is not employed, by the heating medium introduccd inlo the chamber 2. hen a coil is employed, as will preferably be done, said chamber pLevents, to a greater or loss extent,

radiation ol' the heat from the oil, which is warmed or heated by the coil. It is essential in filtering heavy machine oils that the oil be heated in order that it maybe passed readily through the filtering papers which are used.

Extending upwardly from the lower portion 1 is a centrally-d spcsed l1 g or projection 14, provided with a ecutrally-disposed opening and with latera: passages or openings 15, said openings forming passages for the oil which flows from the filter-plates and is then discharged throi gh passages 16 and faucets 17. A single passage and faucet may, of course, be employed. Screwed into the central. opening formed in the lrg 14 is a .rod 18, which is polygonal in cross-section and threaded at its l'ppcr end.

The upper face of the collar or rim 11 and the upper face of the h'g 14 lie in the same horizontal plane and form the support for the lowermost filter-plate 19. The various filter-plates are alike in form and their construction will be best understood upon rcferonce to Fig. 3. Each plate is movided with a contrally-disposed hub 20, and with a peripheral, continuous, ring-shaped member 21. Both sides of the plate are formed with a series of concentric grooves or channels 22, and cross-grooves 23 (Fig. 2) connect the various grooves and permit the oil to flow from the grooves toward and into openings- 24 which extend throrgh the plates in line with the inner portions of the cross-grooves. Openings or passages 25 extend through the hob, one of said passages connecting with each of the vertically-disposcd o icuings 24.

'l he filter-papers are designated by 26, and prior to the )lacing of the lowermost plate in position, a filtcnpapcr is positioned upon the upper face of the mm 11 and the lug or projection 14. 'l he plates are spaced apart by wheol shaped members, comprising hubs 37, spokes 28, and Ubtt'l ring-shaped members 29. At intervals throighoiit the members 29 are formed a series of openings 30, which permit the oil to pass from the chamber into the spaces formed by the spacing members between the underlying and superposed filter plates and the interposed filter-papers and the filter-papers renewed.

20'. A series of these tilter-plates and spacl ing wheels or members is laid up in order l around the rod 18, and when the requisite 1 number have been positioned a cap-piece or cover 31 is placed over the uppermost wheell shaped member or tilter-plate, as the case may be, and forced downwardly thereon, so as to produce a tight joint between the various filter-plates and the wl1eelshaped members, by means of a nut 32 which ist screwed [1 Jon the upper threaded end of the f rod 18. )pcnings 33 will be rovided in the f cover for t 1e entrance of oi to the uppermost filter-paper.

T he operation of the apparatt s is as follows: Oil being introduced under pressure 1 throtgh the pipe 12 and opening 13, is heated by coming into immediate and direct eonl tact with the coil 10 or the heated walls of i the shell or casin and passes in through the openings formed in the spacing members and l in the cover-plate. It then comes in direct l contact with the filter-papers, through which it is forced, and finally, passing thror hi the grooves 22 and 23, finds its way into t e l openings 24 and passages 25, thence throrgh the openings 15 to the passages 16, from which it may be withdrawn by the faucets 17. As will be noted upon reference to Fig. 2, the polygonalshape of the stem or rod 18 l affords passages for the oil around the same, so that the oil coming from the uppermost filter-plate will pass down along the sides of l the rod to the lateral o )enings 15 formed in t the centrally-disposed lug or projection 14. l In case the filter-papers should break or when they become clogged, the operator has merely to remove the nuts 7, lift oil the upper portion 3 of the casing and remove the nut 32. "The cover and the various filter-plates and spacing wheels may then be removed Vi hen the parts are again positioned the vent-cock 9 is opened and the oil is forced inwardly through the pipe 12 until the air has been wholly expelled from the apparatus, after which the cock 9 is closed and the o )cration above set forth again takes place. t is con ccivable that the flow (f the oil, through the apparati s might be reversed, bi t inasmi ch such reversal would tend to disteud the filter-papers it is not thought to be good practice to so operate the filter.

Having thus described my invention. what I claim is:

I. In an oil filter, the combination of a shell or easing; means for heating the oil passing into said casing; a series of filterplates said plates being of such form as to sustain the lilterqntpers in a flat condition; l filter-papers mounted upon said plates; and means for holding the papers and plates in i position to permit the passage of the heated oil through said papers.

2. In an oil filter, the combination of a jacketed shell or casing; means for introducing oil into the same, a series of filter-plates mounted within the shell or casin said plates being of such form as to sustaln the liltcepapcrs in a llat condition; filtering papersmountcd upon said plates; and means for holding the filtering papers and plates in position.

3. In an oil filter, the combination of a shell or casing; a series of filter-plates said I plates being of such form as to sustain the filter-papers in a llat condition; a series of spacing wheels located between said plates, said wheels haying openings in their peripheries whereby the oil may be introduced therethrou h; and filter-papers mounted upon the pfates and held and the wheels.

between said plates 4. In an oil filter, the combination of a shell or casing; a plurality of filter-plates; filter-pa crs resting upon the opposite sides of said p ates; and a series of spacing wheels interposed between said filter-plates, each of said wheels comprising a central hollow hub, spokes radiating therefrom, and an outer ring-shaped member, said member bein provided with openings through which t e oil I may pass from the shell or easing into and between each pair of o positcly-dlsposed filter-papers, the hub ant ring-shaped member of sec 1 spacing-wheel being of substantially the same thickness, whereby the filter-papers will be held flat throughout.

5. In an oil filter, the combination of a shell or casing; means for introducing oil into the same under pressure; a series of filtor-plates, each plate havinga central hub and a ring-shaped peripheral member, the hub being provided with a drainage opening tl'ierethrough communicating with a similar opening extending to the drainage surface of said filter-p.late; s )acing-whcels locatjed between each pair of lilterkpapers and their supporting plates, each of said wheels comprlsmg a central solid hub, spokes radiating therefrom, and a ring-shaped periphera member having openings therein for the assage of oil therethrough the hub and perlphoral member of each wheel bein of substantially the same thickness; and means for clamping the spacing members and the filterplates and filter-papers in position. 

